namespace System
{
    public readonly struct Int64 : IAdditionOperators<long, long, long>, IAdditiveIdentity<long, long>, IBinaryInteger<long>, IBinaryNumber<long>, IBitwiseOperators<long, long, long>, IComparable, IComparable<long>, IComparisonOperators<long, long>, IConvertible, IDecrementOperators<long>, IDivisionOperators<long, long, long>, IEqualityOperators<long, long>, IEquatable<long>, IFormattable, IIncrementOperators<long>, IMinMaxValue<long>, IModulusOperators<long, long, long>, IMultiplicativeIdentity<long, long>, IMultiplyOperators<long, long, long>, INumber<long>, IParseable<long>, IShiftOperators<long, long>, ISignedNumber<long>, ISpanFormattable, ISpanParseable<long>, ISubtractionOperators<long, long, long>, IUnaryNegationOperators<long, long>, IUnaryPlusOperators<long, long>
    {
        public static long Parse(ReadOnlySpan<char> s, NumberStyles style = NumberStyles.Integer, IFormatProvider? provider = null);
    }
}